Base Station Positioning Service Provision via Direct Terminal Interaction

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Solution Overview

Problem

Existing differential positioning methods are complex, costly to construct and maintain, and require additional transmission of positioning correction information, which increases terminal complexity and cost, while also being unreliable due to the need for multiple reference stations.

Innovation Solution

A method that uses existing mobile cellular base stations to provide positioning services by sending positioning service provision capability indication information to terminals, allowing them to request and receive positioning information directly, reducing the need for additional reference stations and improving accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If wide area differential method is used to improve positioning accuracy, then positioning accuracy is improved, but device complexity and construction cost are greatly increased

Engineering Contradiction:

Improvepositioning accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the positioning service function from dedicated reference stations and integrates it into existing base stations. The base station sends positioning assistance information (including satellite ephemeris, clock corrections, and atmospheric delays) directly to terminals through existing communication channels, eliminating the need for separate differential positioning systems while maintaining high accuracy

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent makes base stations serve dual purposes: traditional mobile communication and positioning service provision. By utilizing existing base station infrastructure for both functions, the system avoids the need for separate reference stations, thereby reducing device complexity and construction cost while delivering wide-area differential positioning accuracy

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If wide area differential method is used to improve positioning accuracy, then positioning accuracy is improved, but construction and maintenance cost are greatly increased

Engineering Contradiction:

Improvepositioning accuracyVSAvoidconstruction cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent enables base stations to self-provide positioning services using their existing infrastructure. Base stations already possess satellite positioning receivers and communication capabilities, allowing them to generate and transmit positioning assistance information without requiring additional dedicated reference station construction, thereby eliminating extra construction and maintenance costs

Inventive Principle:

Principle #25Self-service

3Device complexity

If single-station differential method is used to simplify structure, then device complexity is reduced, but system reliability is poorer

Engineering Contradiction:

Improvesystem structureVSAvoidsystem reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent merges multiple reference station functionalities into a single base station. The base station collects satellite positioning data from multiple satellites and combines this with its own location information to generate comprehensive positioning assistance information, achieving both structural simplicity and high reliability through integrated multi-source data processing

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If areal differential method is used to improve system reliability, then system reliability is improved, but positioning accuracy decreases when reference stations are far from terminal

Engineering Contradiction:

Improvesystem reliabilityVSAvoidpositioning accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent introduces base stations as intermediaries between satellites and terminals. Base stations receive satellite positioning data, process it with their own location information, and transmit corrected positioning assistance information to terminals. This intermediary processing eliminates distance-related accuracy degradation by performing differential corrections at the base station level before transmission

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10314002B2Method for providing positioning service, base station and terminal

Publication Date: 2019.06.04 CHINA MOBILE COMM GRP CO LTD

AI summary

Disclosed are a method for providing a positioning service, a base station, and a terminal. The method for providing a positioning service comprises: sending positioning service provision capability indication information to a terminal; receiving a positioning service request reported by the terminal according to the positioning service provision capability indication information; and providing corresponding positioning service information to the terminal according to the positioning service request. In the content of the present disclosure, a corresponding positioning service is provided by using an existing mobile cellular base station, a great number of positioning base stations do not need to be built, and accordingly construction and maintenance costs can be reduced. In addition, the terminal directly interacts with the base station, and the base station directly provides corresponding positioning service information to the terminal, thereby greatly reducing the transmission delay, and improving the positioning precision of the terminal to a certain extent.